【正确答案】正确答案： Rock Climbing Many people take part in rock climbing around the world. / Some do it just for fun while others compete. / Rock climbing takes strength, control and good balance. / Climbers have to be strong enough to pull themselves straight up the face of high rocks or walls. / There are several kinds of rock climbing. / Traditional rock climbing is done outside. / Climbers wear ropes and attach devices to the rocks as they climb up. / Sport climbing is similar but with the protective devices permanently placed in the rock. / There is also indoor climbing, in which rock walls made of wood or concrete / have places for the climber's hands and feet. /